Capillary instabilities in thin films
WebJan 9, 2006 · Evaporation is a complicated fluid phenomenon involving the combined effects of several physical mechanisms including capillary- and gravity-induced interface instabilities, buoyancy, and thermocapillary flows, and vapor recoil deformation of the vapor-liquid interface. The combined effect of all these mechanisms leads to a … WebThe resultant flow of a thin film of fluid is described using lubrication theory when gravity and viscous forces govern the dynamics. We show that the thickness of the flow remains uniform in space and decreases in time like t−1/2 near the …
Capillary instabilities in thin films
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WebVery thin films, less than 100 nm-thick, are used in a variety of applications, including as catalysts and for thin film reactions to form patterned silicides in electronic devices. Because of their high surface to volume ratio, these very thin films are subject to cap-illary … WebSep 7, 2024 · The linear instability of an annular liquid jet with a radial temperature gradient in an inviscid gas steam is investigated theoretically. A physical model of an annular liquid jet with a radial temperature gradient is established, dimensionless governing equations and boundary conditions are given, and numerical solutions are obtained using the spectral …
WebFeb 22, 2011 · Thin films can break up into islands only if they are perturbed by substrate-intersecting perturbations. Grain boundary grooves and vertex pits are typical defects which nucleate holes in these films. WebWe consider the kinetic evolution of perturbations to thin films. Since all small (nonsubstrate intersecting) perturbations to the film surface decay, we consider the …
WebCapillary instabilities in thin films Journal of Electronic Materials. 19: 1153-1160. DOI: 10.1007/Bf02673327 : 0.418: 1989: Ma E, Clevenger L, Thompson C, DeAvillez R, Tu K. Structural Transitions in Titanium/Amorphous-Silicon Multilayers Mrs Proceedings. 163. DOI: 10.1557/Proc-163-961 : WebJun 4, 1998 · Capillary instabilities in solid thin films: Lines. Department of Materials Science and Department of Engineering Sciences and Applied Mathematics, …
WebFeb 10, 1992 · Capillary instabilities in thin, continuous films. The agglomeration of continuous films was studied in 60 nm thick, polycrystalline, gold films deposited on …
WebApr 12, 2024 · Dynamics of a droplet impacting a thin film on a glass substrate: (a) impacting droplet, (b) spreading of the droplet, (c) initiation of the crown, (d) radial and axial growth of the crown, (e) capillary instability identifies as waves on the periphery of the crown, (f) ligament formation on the periphery, and (g) breakup of ligaments. fingers are called whatWebThe Optics study combines topics in areas such as Thin film, Contact angle, Instability and Inclined plane. The concepts of his Contact angle study are interwoven with issues in Wetting, Lubrication, Lubrication theory and Surface energy. ... Capillary instabilities in solid thin films: Lines. Matthew S. McCallum;Peter W. Voorhees;Michael J ... es5 tofixedWebA stability theory is presented which describes the conditions under which thin films rupture. It is found that holes in the film will either grow or shrink, depending on whether their initial radius is larger or smaller than a critical value. es630dols hot water heaterWebAll unstable perturbations are of the varicose (sausage) type. The presence of the substrate is stabilizing; the range of unstable wavelengths is always less than that of a freely … fingers are getting crookedWebCapillary Instability. The meniscus shape may become unstable in the sense that small perturbations to it cause the melt to separate from the... [Pg.98] In addition, patterns … fingers are crookedWebVery thin films, less than 100 nm-thick, are used in a variety of applications, including as catalysts and for thin film reactions to form patterned silicides in electronic devices. … es5 to es6 converter onlineWebThe linear morphological instability of a line of film on a substrate has been examined for contact angles between 0 and π. The base state of the line is an infinitely long cylinder with cross-sectional shape a segment of a circle. We assume that mass flows by diffusion along the film surface and that local equilibrium holds. fingers are cramping almost locking in place